package com.hqyj.service.service;


import com.hqyj.pojo.Yan_liuyan;

import java.util.List;

public interface LiuyanService {
    String liuyan(Yan_liuyan yan_liuyan);

    // 返回所有的留言--后台
    List<Yan_liuyan> getDongtai();
}
